Refreshing the Timeline in Twitterrific 5

When I refresh my timeline or load tweets in a gap, why
do I only get 50 tweets at a time? Can't you increase this
number?

Because of our unified timeline, which displays DMs and mentions
from people you both follow and don't follow alongside the rest of
your followers' tweets, we're actually requesting 100 tweets from
twitter from all three timelines every time you refresh, adding up
to 300 tweets. Because of this, we have to limit the number of new
tweets we can request in any given refresh so that users don't
quickly run out their rate limit from Twitter's service.